Race review
Set for 27 September 2026 at the Xaysetha Economic Zone in Vientiane, this Green Step-organised half marathon offers three distances with registration open. A Lao capital race with Mekong River connections.
Last updated August 4, 2026
The Mekong Half Marathon is a Vientiane road race organised by Green Step — a Lao social enterprise — at the Xaysetha Economic Zone along the Mekong River. Three distances (21K, 10K, 5K) with registration open. September in Vientiane is the late rainy season, with warm, humid conditions and the Mekong at its fullest. For runners wanting a Lao half marathon with open registration and a community-organised feel, this is a solid, bookable option.
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The Xaysetha Economic Zone sits along the Mekong River in Vientiane, providing riverside road-running with views across to Thailand. [1] Green Step is a named Lao social enterprise, giving the race community-purpose credibility. Registration is open.
A Mekong riverside half marathon in Vientiane with open registration. 27 September 2026. [1]
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27 September 2026 in Vientiane, Laos. It offers 21K, 10K, and 5K. Registration is currently open. Green Step organises the event. It's held at Xaysetha Economic Zone, Vientiane. Mark it on your calendar if you're planning your racing year around it. [1]
Planning to enter? See the full facts — dates, distances, pricing and registration — on the Mekong Half Marathon listing.
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